public class HardDisk {
	int amount;
	void setAmount(int m) {
		amount = m;
	}
	int getAmount() {
		return amount;
	}
	public String toString() {
		return Integer.toString(amount);
	}
	static boolean equals(HardDisk a,HardDisk b) {
		if(a.amount==b.amount)
			return true;
		else
			return false;
	}
}

